Find Research Outputs

Search concepts
Selected Filters
2019
Spacecraft
Plasmas
Kinetics
2018
plumes
Plasmas
Kinetics
Electrons
kinetics
2017

Simulations of ion thruster plumes in ground facilities using adaptive mesh refinement

Korkut, B., Levin Fliflet, D. & Tumuklu, O., Jan 1 2017, In : Journal of Propulsion and Power. 33, 3, p. 681-696 16 p.

Research output: Contribution to journalArticle

plumes
plume
vacuum chambers
ion
Vacuum
2018

On the unsteadiness of shock-laminar boundary layer interactions of hypersonic flows over a double cone

Tumuklu, O., Theofilis, V. & Levin Fliflet, D., Oct 1 2018, In : Physics of fluids. 30, 10, 106111.

Research output: Contribution to journalArticle

hypersonic flow
Hypersonic flow
laminar boundary layer
Laminar boundary layer
Cones
2017

On the temporal evolution in laminar separated boundary layer shock-interaction flows using DSMC

Tumuklu, O., Levin Fliflet, D. & Theofilis, V., Jan 1 2017, AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting. American Institute of Aeronautics and Astronautics Inc., AIAA 2017-1614. (AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Flow interactions
Laminar boundary layer
Shock waves
Boundary layers
Hypersonic flow
2018

Micro-scale thermal response modeling of an Avcoat-like TPS

Sawant, S. S., Rao, P., Harpale, A., Chew, H. B. & Levin Fliflet, D., Jan 1 2018, AIAA Aerospace Sciences Meeting. 210059 ed. American Institute of Aeronautics and Astronautics Inc, AIAA, (AIAA Aerospace Sciences Meeting, 2018; no. 210059).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Gases
Microstructure
Pyrolysis
Statistics
Formaldehyde
2017

Three-dimensional simulations of backflows from ion thruster plumes using unstructured grid refinement

Korkut, B. & Levin, D. A., Jan 1 2017, In : Journal of Propulsion and Power. 33, 1, p. 264-275 12 p.

Research output: Contribution to journalArticle

plumes
plume
ion
Ions
simulation
2019

Study of ionic liquid mixture droplet evolution in an external electric field using molecular dynamics

Mehta, N. A. & Levin Fliflet, D., Aug 5 2019, 31st International Symposium on Rarefied Gas Dynamics, RGD 2018. Lockerby, D., Emerson, D. R., Wu, L. & Zhang, Y. (eds.). American Institute of Physics Inc., 050001. (AIP Conference Proceedings; vol. 2132).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
molecular dynamics
electric field
droplets
droplet
nitrates
2018

Ablative thermal protection systems: Pyrolysis modeling by scale-bridging molecular dynamics

Harpale, A., Sawant, S., Kumar, R., Levin, D. & Chew, H. B., Apr 2018, In : Carbon. 130, p. 315-324 10 p.

Research output: Contribution to journalArticle

Molecular dynamics
Pyrolysis
Phenolic resins
Computer simulation
Syntactics

Development of new techniques for studying unsteady behavior in hypersonic boundary layer interactions

Tumuklu, O., Levin Fliflet, D. & Theofilis, V., Jan 1 2018, 2018 Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, AIAA 2018-3709. (2018 Fluid Dynamics Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hypersonic boundary layers
Momentum
Reynolds number
Cones
Acoustics
2017

Novel use of AMR unstructured grids in DSMC compressible flow simulations

Sawant, S. S., Tumuklu, O. & Levin, D. A., Jan 1 2017, 47th AIAA Thermophysics Conference, 2017. American Institute of Aeronautics and Astronautics Inc, AIAA, (47th AIAA Thermophysics Conference, 2017).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Compressible flow
Flow simulation
2018

Application of adaptively refined unstructured grids in DSMC to shock wave simulations

Sawant, S. S., Tumuklu, O., Jambunathan, R. & Levin Fliflet, D., Jul 15 2018, In : Computers and Fluids. 170, p. 197-212 16 p.

Research output: Contribution to journalArticle

Shock waves
Gas fuel measurement
Hypersonic flow
Surface measurement
Hypersonic aerodynamics
2017

Molecular-dynamics-derived gas-surface models for use in direct-simulation Monte Carlo

Mehta, N. A. & Levin Fliflet, D., Oct 1 2017, In : Journal of thermophysics and heat transfer. 31, 4, p. 757-771 15 p.

Research output: Contribution to journalArticle

molecular dynamics
accommodation coefficient
gases
incidence
simulation
2019

Multi-scale thermal response modeling of an AVCOAT-like thermal protection material

Sawant, S. S., Rao, P., Harpale, A., Chew, H. B. & Levin Fliflet, D., Apr 2019, In : International Journal of Heat and Mass Transfer. 133, p. 1176-1195 20 p.

Research output: Contribution to journalArticle

thermal protection
pyrolysis
boundary layers
microstructure
Boundary layers
2017
Hypersonic aerodynamics
Laminar flow
Hypersonic flow
Linearization
Probability distributions
2019

Multiscale modeling of damaged surface topology in a hypersonic boundary

Mehta, N. A. & Levin Fliflet, D., Sep 28 2019, In : Journal of Chemical Physics. 151, 12, 124710.

Research output: Contribution to journalArticle

Open Access
hypersonics
Hypersonic aerodynamics
topology
Topology
Graphite
2018

Effects of reynolds number on laminar boundary layer shock-interaction hypersonic flows on a double cone

Tumuklu, O., Levin Fliflet, D. & Theofilis, V., Jan 1 2018, 2018 Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, AIAA 2018-4032. (2018 Fluid Dynamics Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hypersonic flow
Laminar boundary layer
Cones
Reynolds number
Heating

Prediction of thermal protection system material permeability and hydraulic tortuosity factor using Direct Simulation Monte Carlo

Jambunathan, R., Levin Fliflet, D., Borner, A., Ferguson, J. C. & Panerai, F., Jan 1 2018, AIAA Aerospace Sciences Meeting. 210059 ed. American Institute of Aeronautics and Astronautics Inc, AIAA, (AIAA Aerospace Sciences Meeting, 2018; no. 210059).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hydraulics
Boundary layers
Carbon
Gases
Materials properties
2015

State specific modeling of energy transfer in N2-N2 under high temperature condition

Zhu, T., Li, Z., Parsons, N. & Levin Fliflet, D., Jan 1 2015, 53rd AIAA Aerospace Sciences Meeting. American Institute of Aeronautics and Astronautics Inc, AIAA, AIAA 2015-0477. (53rd AIAA Aerospace Sciences Meeting).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Bins
Energy transfer
Electron energy levels
Trajectories
Temperature
2017

Constraining the Enceladus plume using numerical simulation and Cassini data

Yeoh, S. K., Li, Z., Goldstein, D. B., Varghese, P. L., Levin, D. A. & Trafton, L. M., Jan 1 2017, In : Icarus. 281, p. 357-378 22 p.

Research output: Contribution to journalArticle

Enceladus
plumes
plume
simulation
vents

Effects of boundary conditions on the electrospray emission behavior using molecular dynamics

Mehta, N. & Levin, D. A., Jan 1 2017, AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting. American Institute of Aeronautics and Astronautics Inc., AIAA 2017-1341. (AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Molecular dynamics
Boundary conditions
Coulomb interactions
Ionic liquids
Nanostructures
2019

On the study of ion thruster plume characteristics and backflow contamination using fully-kinetic PIC-DSMC simulations.

Jambunathan, R. & Levin, D. A., Jan 1 2019, AIAA Propulsion and Energy Forum and Exposition, 2019. [publishername] American Institute of Aeronautics and Astronautics Inc, AIAA, (AIAA Propulsion and Energy Forum and Exposition, 2019).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kinetic modeling of parasitic currents on spacecraft surfaces due to ambient space plasmas

Nuwal, N. & Levin, D. A., Jan 1 2019, AIAA Propulsion and Energy Forum and Exposition, 2019. [publishername] American Institute of Aeronautics and Astronautics Inc, AIAA, (AIAA Propulsion and Energy Forum and Exposition, 2019).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Spacecraft
Solar cells
Spacecraft equipment
Plasmas
Kinetics
2018

Multi-GPU PIC solver for modeling of ion thruster plasma plume

Jambunathan, R. & Levin Fliflet, D., Jan 1 2018, AIAA Aerospace Sciences Meeting. 210059 ed. American Institute of Aeronautics and Astronautics Inc, AIAA, (AIAA Aerospace Sciences Meeting, 2018; no. 210059).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electron sources
Plasmas
Electrons
Ions
Boundary conditions
2019

Kinetic modeling of unsteady hypersonic flows over a tick geometry

Tumuklu, O., Levin Fliflet, D. & Theofilis, V., May 1 2019, In : Physics of fluids. 31, 5, 056108.

Research output: Contribution to journalArticle

hypersonic flow
Hypersonic flow
leading edges
Kinetics
Geometry

Simulations of surface evolution due to particulate-surface interaction

Mehta, N., Rayabharam, A. & Levin Fliflet, D., Jan 1 2019, AIAA Scitech 2019 Forum. American Institute of Aeronautics and Astronautics Inc, AIAA, (AIAA Scitech 2019 Forum).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ice
Quartz
Atoms
Kinetic energy
Argon
2016

Factors influencing flow steadiness in laminar boundary layer shock interactions

Tumuklu, O., Levin Fliflet, D., Gimelshein, S. F. & Austin, J. M., Nov 15 2016, 30th International Symposium on Rarefied Gas Dynamics, RGD 2016. Struchtrup, H. & Ketsdever, A. (eds.). American Institute of Physics Inc., 050005. (AIP Conference Proceedings; vol. 1786).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

laminar boundary layer
wedges
shock
interactions
shock tunnels

Advanced parallelization strategies using hybrid MPI-CUDA DSMC method for modeling flow through porous media

Jambunathan, R. & Levin, D. A., Jan 1 2016, 46th AIAA Thermophysics Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, (46th AIAA Thermophysics Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Porous materials
Fractals
Flow of gases
Argon
Graphics processing unit
2018
Molecular dynamics
Nitrates
Liquid propellants
Ionic liquids
Ions
2016

Coarse graining of ethylammonium nitrate using effective field coarse graining method

Mehta, N. & Levin Fliflet, D., 2016, 54th AIAA Aerospace Sciences Meeting. American Institute of Aeronautics and Astronautics Inc, AIAA

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nitrates

Forest of octree DSMC simulations of flow through porous media

Jambunathan, R. & Levin, D. A., Nov 15 2016, 30th International Symposium on Rarefied Gas Dynamics, RGD 2016. Struchtrup, H. & Ketsdever, A. (eds.). American Institute of Physics Inc., 050009. (AIP Conference Proceedings; vol. 1786).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

permeability
gas flow
Monte Carlo method
fractals
simulation
2017

Advanced parallelization strategies using hybrid MPI-CUDA octree DSMC method for modeling flow through porous media

Jambunathan, R. & Levin, D. A., Jun 13 2017, In : Computers and Fluids. 149, p. 70-87 18 p.

Research output: Contribution to journalArticle

Porous materials
Supersonic flow
Fractals
Argon
Monte Carlo methods
2015

State specific modeling of energy transfer in nitrogen shocks using high fidelity models

Zhu, T., Li, Z., Parsons, N., Levin, D. A. & Pane, M., Jan 1 2015, 45th AIAA Thermophysics Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, p. 1-14 14 p. (45th AIAA Thermophysics Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Bins
Energy transfer
Nitrogen
Temperature
2018

Prediction of flight measurements of high-enthalpy nonequilibrium flow from a cubesat-class atmospheric probe

Morgan, J., Nuwal, N., Williams, J., Putnam, Z. R., Levin Fliflet, D., Pikus, A., Berger, A. & Alexeenko, A., Jan 1 2018, AIAA Aerospace Sciences Meeting. 210059 ed. American Institute of Aeronautics and Astronautics Inc, AIAA, (AIAA Aerospace Sciences Meeting, 2018; no. 210059).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Radiative transfer
Nitric oxide
Pressure sensors
Ultraviolet radiation
Sensitivity analysis
2016

Simulation of hypersonic flows using a particle-based ellipsoidal statistical Bhatnagar-Gross-Krook method

Tumuklu, O., Li, Z. & Levin Fliflet, D., Jan 1 2016, 54th AIAA Aerospace Sciences Meeting. American Institute of Aeronautics and Astronautics Inc, AIAA, (54th AIAA Aerospace Sciences Meeting; vol. 0).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hypersonic flow
Boltzmann equation
Momentum
Monte Carlo simulation
Costs

Development of an amr octree DSMC approach for shock dominated flows

Sawant, S. S., Jambhunathan, R., Tumuklu, O., Korkut, B. & Levin, D. A., Jan 1 2016, 54th AIAA Aerospace Sciences Meeting. American Institute of Aeronautics and Astronautics Inc, AIAA, (54th AIAA Aerospace Sciences Meeting).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hypersonic flow
Scalability
Communication

Development of a two-dimensional binning model for N2-N relaxation in hypersonic shock conditions

Zhu, T., Li, Z. & Levin Fliflet, D., Jan 1 2016, 46th AIAA Thermophysics Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, (46th AIAA Thermophysics Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hypersonic aerodynamics
Bins
Relaxation time
Forward scattering
Potential energy surfaces
2019

Prediction of gas transport properties through fibrous carbon preform microstructures using Direct Simulation Monte Carlo

Jambunathan, R., Levin, D. A., Borner, A., Ferguson, J. C. & Panerai, F., Mar 2019, In : International Journal of Heat and Mass Transfer. 130, p. 923-937 15 p.

Research output: Contribution to journalArticle

gas transport
preforms
Transport properties
Carbon
transport properties

3D detailed far field plume modeling of SPT-100

Tekinalp, A. & Levin, D. A., Jan 1 2019, AIAA Propulsion and Energy Forum and Exposition, 2019. [publishername] American Institute of Aeronautics and Astronautics Inc, AIAA, (AIAA Propulsion and Energy Forum and Exposition, 2019).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hall thrusters
Electrons
Ions
Sputtering
Fluids
2016

Study of non-reactive scattering from graphene using molecular beam experiments and molecular dynamics

Mehta, N. A., Levin, D. A., Murray, V. J. & Minton, T. K., Nov 15 2016, 30th International Symposium on Rarefied Gas Dynamics, RGD 2016. Struchtrup, H. & Ketsdever, A. (eds.). American Institute of Physics Inc., 100003. (AIP Conference Proceedings; vol. 1786).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

molecular beams
graphene
molecular dynamics
surface reactions
escape
2018

Nonreactive Scattering of N2 from Layered Graphene Using Molecular Beam Experiments and Molecular Dynamics

Mehta, N. A., Murray, V. J., Xu, C., Levin Fliflet, D. & Minton, T. K., May 10 2018, In : Journal of Physical Chemistry C. 122, 18, p. 9859-9874 16 p.

Research output: Contribution to journalArticle

Molecular beams
Graphite
Graphene
molecular beams
Molecular dynamics
2019

Electrospray molecular dynamics simulations using an octree-based Coulomb interaction method

Mehta, N. A. & Levin Fliflet, D., Mar 11 2019, In : Physical Review E. 99, 3, 033302.

Research output: Contribution to journalArticle

Octree
Coulomb Interaction
Molecular Dynamics Simulation
molecular dynamics
simulation
2017

Assessment of predictive capabilities for aerodynamic heating in hypersonic flow

Knight, D., Chazot, O., Austin, J., Badr, M. A., Candler, G., Celik, B., Rosa, D. D., Donelli, R., Komives, J., Lani, A., Levin, D., Nompelis, I., Panesi, M., Pezzella, G., Reimann, B., Tumuklu, O. & Yuceil, K., Apr 2017, In : Progress in Aerospace Sciences. 90, p. 39-53 15 p.

Research output: Contribution to journalReview article

Aerodynamic heating
Hypersonic flow
Hypersonic aerodynamics
Computational fluid dynamics
Plant startup
2018

Investigation of unsteady, hypersonic, laminar separated flows over a double cone geometry using a kinetic approach

Tumuklu, O., Levin Fliflet, D. & Theofilis, V., Apr 1 2018, In : Physics of fluids. 30, 4, 046103.

Research output: Contribution to journalArticle

separated flow
hypersonics
Hypersonic aerodynamics
Laminar flow
Cones
2015

A study of internal energy relaxation in shocks using molecular dynamics based models

Li, Z., Parsons, N. & Levin Fliflet, D., Oct 14 2015, In : Journal of Chemical Physics. 143, 14, 144501.

Research output: Contribution to journalArticle

internal energy
Molecular dynamics
shock
molecular dynamics
molecular relaxation
2017
Hypersonic aerodynamics
Laminar flow
Shock waves
Cones
Boundary layers
2019

Study of inert simulated particle transportation in a moving shock/pressure wave generated by electrostatic discharges

Marayikkottu, A. V., Sawant, S., Rao, P. & Levin Fliflet, D., Jan 1 2019, AIAA Scitech 2019 Forum. American Institute of Aeronautics and Astronautics Inc, AIAA, (AIAA Scitech 2019 Forum).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electrostatic discharge
Dust
Transport properties
Geometry
Fractals
2016

Coarse-grained model for N2-N relaxation in hypersonic shock conditions using two-dimensional bins

Zhu, T., Li, Z. & Levin, D. A., Nov 15 2016, 30th International Symposium on Rarefied Gas Dynamics, RGD 2016. Struchtrup, H. & Ketsdever, A. (eds.). American Institute of Physics Inc., 150008. (AIP Conference Proceedings; vol. 1786).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

hypersonic shock
potential energy
relaxation time
reacting flow
simulation
2019

Use of particle methods for understanding hypersonic shock boundary layer interactions

Tumuklu, O., Levin Fliflet, D. & Theofilis, V., Aug 5 2019, 31st International Symposium on Rarefied Gas Dynamics, RGD 2018. Lockerby, D., Emerson, D. R., Wu, L. & Zhang, Y. (eds.). American Institute of Physics Inc., 080002. (AIP Conference Proceedings; vol. 2132).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
hypersonic shock
boundary layers
boundary layer
shock
Kelvin-Helmholtz instability
2015

3-D simulation of ion thruster plumes using octree adaptive mesh refinement

Korkut, B., Li, Z. & Levin, D. A., May 1 2015, In : IEEE Transactions on Plasma Science. 43, 5, p. 1706-1721 16 p.

Research output: Contribution to journalArticle

plumes
ions
charge exchange
simulation
grids